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IPv4 Transfer Documents by Registry

Reviewed by Philippe Girard, RIR policy & compliance lead

Every registry checks the same three things: that both organisations exist, that the people signing may sign for them, and that the transfer meets policy. The documents below are how you prove each one. Missing or stale paperwork is the most common reason a transfer stalls.

Core documents, every registry

DocumentSupplied byWhat it provesCommon mistake
Company registration extractEach partyThe organisation exists and is activeExtract older than about three months, or in a language the registry asks to have translated
Proof of signing authorityEach partyThe signer may act for the companySigner not shown in the extract and no power of attorney attached
Identity verificationNatural persons, and sometimes signatoriesWho the person isExpired ID; RIPE NCC verifies through its third-party provider iDenfy
Registry accountRecipientThe block has somewhere to landMembership application started after the deal, adding weeks
Transfer requestParty the registry designatesThe specific resources and partiesWrong prefix boundaries for a partial transfer

Additional documents by registry

RegistryAdditional documentsNotes
RIPE NCCTransfer Agreement signed by both parties’ authorised representatives; End User Assignment Agreement if the recipient is an End UserNo needs justification. Not required for consolidations between LIRs of the same member. Both parties are checked against the EU sanctions list
ARINRecipient needs documentation for blocks larger than a /24; signed Registration Services Agreement within 90 days of approvalSource and recipient each file a request. Additional documents are requested case by case; redactions and an NDA are available
APNICDetailed plan for use of the transferred spaceNew accounts pay the annual membership fee before completion; existing accounts pay a transfer fee
LACNICRecipient needs justificationCheck LACNIC’s current transfer procedure for the document list
AFRINICNeeds justification; latest Registration Services Agreement signed by both transferor and recipientOlder RSA versions prohibited transfers, so a source on an old RSA has to sign the current one first

Sources: RIPE NCC transfers in the service region, ARIN transfers, APNIC transfer conditions, AFRINIC resource transfers. Checked October 2026.

Inter-RIR transfers

Each side supplies the documents its own registry asks for, and the source registry approves first. For a transfer out of the RIPE region, the source sends the inter-RIR template and a confirmation letter signed by a director to [email protected], along with the usual registration documents; the receiving registry then contacts the recipient. Legacy holders without a RIPE NCC contract use a separate version of the confirmation letter.

Mergers and acquisitions

A change of holder through a corporate event replaces the transfer agreement with proof of the event itself:

  • Merger or amalgamation certificates, filed with the company registry
  • The relevant pages of an asset purchase agreement: the parties, the date, the signatures, and the clause or schedule covering the network assets
  • Court orders, for insolvency sales
  • Evidence for each step if several transactions link the original holder to the current one

ARIN accepts redacted documents and asks only for the key pages of an asset purchase agreement, not the whole contract. RIPE NCC asks for the documents on its required documents for registry updates page.

Preparing the pack

  • Order registry extracts at the start. They are cheap and quick to obtain, and a stale extract costs a full review cycle.
  • Match names exactly. The legal name on the contract, the extract, and the registry record must agree, including the legal-form suffix. A name change since the block was registered is a separate registry update to do first.
  • Check the record before the paperwork. If the holder of record in WHOIS is not the selling entity, no document pack will fix that; see the block verification checklist.
  • Line up the recipient’s registry account early. Opening an LIR, ARIN Org ID, or APNIC account runs in parallel with negotiation, not after it.

The transfer process overview shows where in the sequence each document is needed. Sellers preparing a block for sale can also start from selling IPv4 with document support.

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